HET 200kVA/20kV Exciter Transformer - Triple Voltage Output for High Frequency Testing

Technical Specifications

Key Features

Flexible Voltage Output

• Three selectable output voltages

• Wide frequency operation (25-300Hz)

• Optimized for intermittent testing cycles

• Electrostatic shielding between windings

Premium Construction

• Oil-immersed shell-type design

• D0130-30 high-grade silicon steel core

• Double-coil copper wire windings

• Integrated measuring coil for HV monitoring

Advanced Monitoring System

• Oil expansion tank with moisture absorber

• Temperature thermograph and level indicator

• Transport-optimized component layout

• Low noise operation (≤60dB)

Performance Parameters

• Cooling: ONAN with 25# transformer oil

• Temperature Limits: 65°C (windings), 55°C (oil)

• Continuous Operation: 15 minutes at rated capacity

• Impedance: ≤5%

Insulation System

1. LV winding withstand: 3kV/1min

2. HV winding withstand: 110% rated voltage for 60s

3. Ample HV/LV winding clearance

4. Corona-free design up to 20kV

Safety & Reliability

• Class A heat resistance rating

• Partial discharge prevention design

• Isolation filter function

• All bushings and valves transport-secured

Typical Applications

• Variable frequency resonant testing

• Cable and capacitor withstand tests

• Medium-voltage equipment validation

• Transformer factory acceptance testing

The HET 200kVA/20kV exciter transformer provides exceptional testing flexibility with its triple voltage outputs and wide frequency range, engineered for reliable performance in standardized testing cycles.